Improvement in door-sills



A. sAun.

noon-sur.. r

Patented Jan.4,1876.

Attorney;

N. PETERS, PHOTO-LITHOGRAFHER. WASHINGTON, D C.

UNITED STATES PATENT OFFICE.

ANTON SAUB, OF FRANKLIN, INDIANA.

IMPROVEMENT I DOOR-SILLS.

Specification forming part of Letters Patent No. [71,870, dated January 4, 1876; application filed December 3, 1875.

l'o all whom it may concern? Be it known that I, ANTON SAUR, of Franklin, in the county of Johnson and in the State vot' Indiana, have invented certain new and useful Improvements in Door-Sillsgand do hereby declare that the following is 'a full, clear, and exact description thereof', reference being had to the accompanying drawings and to the letters of reference marked thereon, making apart of this specilication.

The nature of my invention consists in the construction and v'arrangement of a grooved f threshold or sill for outside doors to prevent water from being blown in under the door, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which inyinvention appertains to make and use' the same, I will now proceed to describe its construction and operation, referring to the annexed drawing', in which- Figure lis a plan view ofmyim proved threshold or sill. Fig. 2 is a cross-section of the same, through the line w at', Fig. l.

A represents the door-sill of any suitable shape or form, and made with its upper sur` face slanting or inclined from the inner side or edge downward toward the outer side or edge. In the center ot' the sill A, ou the upper surface, are a series of concentric semicircular grooves, B B, the ends of which pass through the outer lower edge ofthe sill. These scmicircular grooves are connected by a number of short cross-grooves, c c. On each side of the semicircular grooves B are grooves C C, running diagonally, crossing each other, form- 'ing diamond-shaped points b. These grooves run to a suitable distance from each end of the sill, the remaining portions at the ends,

having grooves l) running downward and inward toward the center, as shown.

These grooves are all made shallow, so that they can be easily swept over, and being connected and running into each other the water Will run off easily and quickly without standing in the grooves.

. Having thus fully described my invention,

what I claim as new, and desire to'secure by y M ANTON SAUR.

Witnesses: JACOB L. WHITE, It. W. JOHNSON. 

